Abstract
The nonstoichiometric perovskite LaMnOx was prepared under different conditions. LaMnOx was ground with a small amount of water. Then the space between electrodes was smeared with the muddy samples. After drying the samples, the electrical resistivity was measured at 27°C in the relative humidity range from 0 to 100%. The electrical resistivity exponentially decreased with increasing relative humidity. From this decrease, it is assumed that the electrical conductivity is based on the ionic conductivity of the adsorbed water.
